Home / 13,187,711.80-19,781,567.70-9,361,336.60

Finding the Fourth Proportional to 13,187,711.80, 19,781,567.70 and 9,361,336.60

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Solution

The fourth proportional to 13,187,711.80, 19,781,567.70 and 9,361,336.60 is: 14,042,004.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,187,711.80 : 19,781,567.70 = 9,361,336.60 : x
  2. Step 2: Convert to fraction form
    13,187,711.80/19,781,567.70 = 9,361,336.60/x
  3. Step 3: Cross multiply
    13,187,711.80x = 19,781,567.70 × 9,361,336.60
  4. Step 4: Simplify right side
    13,187,711.80x = 185,181,913,715,387.81
  5. Step 5: Solve for x
    x = 185,181,913,715,387.81/13,187,711.80
  6. Step 6: Final answer
    x = 14,042,004.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.